Try "Reset Firefox" -- it helps lots of problems like this. See https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems https://support.moz

Try "Reset Firefox" -- it helps lots of problems like this. See https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems https://support.mozilla.org/en-US/kb/reset-firefox-easily-fi....